Antarctic Survey Telescope 3-3: Overview, System Performance and Preliminary Observations at Yaoan, Yunnan
Wang, Lifan; Hu, Lei; Hu, Maokai; Sun, Tianrui; Li, Yun; Li, Xiaoyan; Meng, Kelai; Han, Zijian; Li, Zhengyang; Wen, Haikun; Du, Fujia; Yang, Shihai; Gu, Bozhong; Yuan, Xiangyan; Wang, Huihui; Liu, Lei; Zhu, Zhenxi; Huang, Xuehai; Lei, Chengming; Wu, Xuefeng
China, United States
Abstract
The third Antarctic Survey Telescope array instrument at Dome A in Antarctica, the AST3-3 telescope, has been in commissioning from March 2021. We deployed AST3-3 at the Yaoan astronomical station in Yunnan Province for an automatic time-domain survey and follow-up observations with an optimised observation and protection system. The telescope system of AST3-3 is similar to that of AST3-1 and AST3-2, except that it is equipped with a 14 K × 10 K QHY411 CMOS camera. AST3-3 has a field of view of 1.65∘×1.23∘ and is currently using the g band filter. During commissioning at Yaoan, AST3-3 aims to conduct an extragalactic transient survey, coupled with prompt follow-ups of opportunity targets. In this paper, we present the architecture of the AST3-3 automatic observation system. We demonstrate the data processing of observations by representatives SN 2022eyw and GRB 210420B.